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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_RS_FILE_A3D_H
#define ANDROID_RS_FILE_A3D_H
#include "RenderScript.h"
#include "rsFileA3DDecls.h"
#include "rsMesh.h"
#include <utils/String8.h>
#include <stdio.h>
// ---------------------------------------------------------------------------
namespace android {
namespace renderscript {
class FileA3D
{
public:
FileA3D();
~FileA3D();
uint32_t mMajorVersion;
uint32_t mMinorVersion;
uint64_t mIndexOffset;
uint64_t mStringTableOffset;
bool mUse64BitOffsets;
struct A3DIndexEntry {
String8 mID;
A3DChunkType mType;
uint64_t mOffset;
void * mRsObj;
};
bool load(Context *rsc, FILE *f);
protected:
class IO
{
public:
IO(const uint8_t *, bool use64);
float loadF() {
mPos = (mPos + 3) & (~3);
float tmp = reinterpret_cast<const float *>(&mData[mPos])[0];
mPos += sizeof(float);
return tmp;
}
int32_t loadI32() {
mPos = (mPos + 3) & (~3);
int32_t tmp = reinterpret_cast<const int32_t *>(&mData[mPos])[0];
mPos += sizeof(int32_t);
return tmp;
}
uint32_t loadU32() {
mPos = (mPos + 3) & (~3);
uint32_t tmp = reinterpret_cast<const uint32_t *>(&mData[mPos])[0];
mPos += sizeof(uint32_t);
return tmp;
}
uint16_t loadU16() {
mPos = (mPos + 1) & (~1);
uint16_t tmp = reinterpret_cast<const uint16_t *>(&mData[mPos])[0];
mPos += sizeof(uint16_t);
return tmp;
}
uint8_t loadU8() {
uint8_t tmp = reinterpret_cast<const uint8_t *>(&mData[mPos])[0];
mPos += sizeof(uint8_t);
return tmp;
}
uint64_t loadOffset();
void loadString(String8 *s);
uint64_t getPos() const {return mPos;}
const uint8_t * getPtr() const;
protected:
const uint8_t * mData;
uint64_t mPos;
bool mUse64;
};
bool process(Context *rsc);
bool processIndex(Context *rsc, A3DIndexEntry *);
void processChunk_Mesh(Context *rsc, IO *io, A3DIndexEntry *ie);
void processChunk_Primitive(Context *rsc, IO *io, A3DIndexEntry *ie);
void processChunk_Verticies(Context *rsc, IO *io, A3DIndexEntry *ie);
void processChunk_Element(Context *rsc, IO *io, A3DIndexEntry *ie);
void processChunk_ElementSource(Context *rsc, IO *io, A3DIndexEntry *ie);
const uint8_t * mData;
void * mAlloc;
uint64_t mDataSize;
Context * mRsc;
Vector<A3DIndexEntry> mIndex;
Vector<String8> mStrings;
Vector<uint32_t> mStringIndexValues;
};
}
}
#endif //ANDROID_RS_FILE_A3D_H
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